/***************************/
/*Bat dau khai bao bien*/
var xmlhttp;
/*Ket thuc khai bao biet*/
/***************************/


/***************************/
/*Bat dau ham kiem tra lay doi tuong XML*/
function GetXmlHttpObject()
{
	if (window.XMLHttpRequest)
	{
		// code for IE7+, Firefox, Chrome, Opera, Safari
		return new XMLHttpRequest();
	}
	if (window.ActiveXObject)
	{
			// code for IE6, IE5
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}
/*Ket thuc ham kiem tra lay doi tuong XML**/
/***************************/